package com.jiyun.testlist.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.jiyun.model.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

@Mapper
public interface UserMapper extends BaseMapper<User> {

    @Select("select username from user where user.id=#{value}")
    String find5(Integer id);
}
